# -*- coding: UTF-8 -*-
from typing import List
from leetcode_helper import TestcaseHelper, SolutionBase


class Solution(SolutionBase):
    # 解题的方法，命名和Leetcode的保持一致即可
    def getAverages(self, nums: List[int], k: int) -> List[int]:
        nums_len = len(nums)
        ans = [-1] * nums_len

        window_sum = 0
        avg = 0

        if nums_len >= 2 * k + 1:
            for i in range(0, 2 * k + 1):
                window_sum += nums[i]

            ans[k] = int(window_sum / (2 * k + 1))

            for i in range(k + 1, nums_len - k):
                window_sum -= nums[i - k - 1]
                window_sum += nums[i + k]

                ans[i] = int(window_sum / (2 * k + 1))

        return ans


if __name__ == '__main__':
    solution = Solution()

    # 按照leetcode的题目说明，将基本的test case填入
    # 每条case的最后一个元素是正确的结果，即期待的结果
    # 使用元组来保存输入的数据，期待的结果
    testcases = [
        ([7, 4, 3, 9, 1, 8, 5, 2, 6], 3, [-1, -1, -1, 5, 4, 4, -1, -1, -1]),
        ([100000], 0, [100000]),
        ([8], 100000, [-1])
    ]

    for case_item in testcases:
        # 获取测试用的case和期待的执行结果
        input1 = case_item[0]
        input2 = case_item[1]

        expect = case_item[len(case_item) - 1]

        exec_result = solution.getAverages(input1, input2)

        # 判断执行结果，输出提示信息
        check_result = solution.check_result(expect, exec_result)
        TestcaseHelper.print_case(check_result, case_item, exec_result)
